Western Kansas world. [volume] (WaKeeney, Kan.) 1885-current, 1887-04-30
MECHANICAL.

The strength and toughness that fire.
brick acquires In the burning are the
result of fritting; the aluminium silicate
frits with impurities and with silica.
and an excess of the latter prevents the
fritting particles from rendering the
mass too dense or brittle.
In Sweden steam ingines have hith-
erto been without any government con-
troll whatever, but orders have now
been given to the magistrates to send
in before March Is, q list of all steam
engines in their district, with full re-
port of age, kind, etc. In Norway no
steps have as yet been taken in this di-
rection.
A METHOD of producing screw or
bolt, which is adapted to receive q nut,
having either q right or left-handed
screw-thread, consists of forming .
blank having two opposite arc-shaped
portions and intermediate fiattened por-
tons, in cutting threat upon such
blank, and in subsequently chamfering
portions of the thread by means of dies.
The State of Texas, which is about
completing it's new capitol, will cover
it with copper, using about 800 squares.
For buildings owned by the people, not
by individuals, copper is said to be far
the cheapest roofing; for although more
expensive in first cost, it exceeds all
other in durability, and does not re-
quire painting or other repairs If ap-
piled properly.
WITHIN the limits of betting and
shafting overhead, or shafting in any
direction or all directions, underground
power may be readily transmitted, but
when the attempt is made to send
steams for power or for heating, it is
quite probable that it will be found
economy to make the coal into gas and
transmit that to points to be consumed
under boilers and water heaters to sup
ply steam on the premises.
The very rapid progress which has
been made within recent years in the
and treatment of steel,
and in the investigation of other prop
critics of other alloys of iron than those
with carbon, and the influence of impu-
rites on the properties of steel, have left
all our textbooks so far behind that q
work intelligently recording our pres
and collecting and analysing
the scattered information existing in
public and private records, has been
greatly needed.
To DETERMINE whether wool is present
or absent in a piece of goods, solu-
ton of picric acid may be employed,
which instantly imparts q full yellow
tint to the wool, but does not in the
least affect cotton, linen. or China
grass, SO that it is only necessary to inn
merse the fabric in the dye, wiring it out
and wash we'll with water; should any
portion remain of the yellow color, the
presence of wool is indicated. OF
course closer discrimination is afforded
by the microphone.
A SERIES of tests have recently been
made by Dr.. Fischer, the well-known
German chemist, showing that in ordi-
nary domestic stoves, in use not more
than 20 per cent. of fuel consumed is
really utilized for warming the rooms,
with stoves burning gas, 80
per cent. and more of the possible eff
LOU ~ OUtAlueO. LII sugar manu1ac-
tory at Els1orf, it is stated no steam
engines have been used for several
years. Gas is made at cost of about
l0d per 1000 cubic feet, and is used for
lighting and driving steam engines. At
the Essen Works, water gas is made at
, cost of I'D. to Sd. per 1000 feet, and
serves both for fire and lighting.